all these governments have debt and there's only one way to pay it back and it's to devalue their own currency. and it's a race to the bottom. >> reporter: there are other factors that could also help support gold prices. central banks worldwide have been boosting their gold holdings to diversify their portfolios, and protect against inflation. this year, central banks bought roughly 500 metric tons of gold, up 8% from last year. in addition, many small investors are buying gold as a safehaven from global instability. >> political certainty is a major driving factor. it is not just here. but, in the western europe, and in the far east. and, in china. >> reporter: strong demand for gold exchange traded funds has also helped support prices. the spider gold trust-- ticker gld-- has $75 billion in assets. and it's is backed by physical gold. it also helps that some hedge funds with bylaws prohibiting them from buying futures, can buy gold e.t.f.'s. >> so there are some people that were restricted before. they're not now and that's supportive of the gold. >> reporter: a gold rally is not a